This is our Large Digital Electronic Safe Box ,which is of great security for money, jewelry, small pistol and valuables at home, on the road or in the office. Electronic lock can easily be programmed by the user with a "Safety Key" override. 20 second warning “beep” will be actived and time out period after 3 incorrect combination attempts. The safe runs on 4 x AA-Size 1.5V batteries, with 3000-time operation life expectancy of battery. Safes have 4 pre-drilled holes for mounting to the floor, wall or cabinet.